Perceptual quality comparison between single-layer and scalable videos at the same spatial, temporal and amplitude resolutions

TL;DR

This study compares perceptual quality between scalable and single-layer videos at identical resolutions, finding no significant difference through subjective testing and statistical analysis.

Contribution

It provides empirical evidence that scalable and single-layer videos have similar perceptual quality at the same STAR, validated by subjective tests and ANOVA.

Findings

No significant perceptual quality difference between scalable and single-layer videos.

Subjective tests with paired comparison methods support the findings.

ANOVA confirms the lack of significant difference.

Abstract

In this paper, the perceptual quality difference between scalable and single-layer videos coded at the same spatial, temporal and amplitude resolution (STAR) is investigated through a subjective test using a mobile platform. Three source videos are considered and for each source video single-layer and scalable video are compared at 9 different STARs. We utilize paired comparison methods with and without tie option. Results collected from 10 subjects in the without "tie" option and 6 subjects in the with "tie" option show that there is no significant quality difference between scalable and singlelayer video when coded at the same STAR. An analysis of variance (ANOVA) test is also performed to further confirm the finding.